As most of us know, Mistborn era 4 will be a space opera. That leads me to believe that there will be some sort of non-cognitive realm travel involved. I what to know what you think the space travel will look like. Given what we saw in BoM, I think that launching ships using steel pushes is a viable option. But, I want to hear your thoughts.
Also, art/drawings/links to art/designs are welcome on this thread.